Comparison

Stronger vs 75 Days Challenge

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Stronger

This app helps serious lifters plan and track their workouts with AI coaching and community features. Log sets, reps, and weights, and monitor progress with powerful analytics to achieve your fitness goals.

Highlights
  • AI-optimized workout planner
  • Advanced exercise tracker
  • Customizable workout routines
  • Lifting groups and challenges
  • Strength score benchmarking
  • Visual exercise guidance
Features
Read full description

Built for lifters who take their training seriously. Trusted by over 1 million athletes worldwide, Stronger is the simple and intuitive workout planner to help you crush your fitness goals. Track your workouts, receive AI coaching, and compete with your friends. Whether you want to build strength, lose weight, or simply stay consistent, Stronger is your perfect gym companion. WHY STRONGER? Join a global community of athletes logging their workouts, smashing fitness goals, and supporting each other. EVERYTHING YOU NEED TO TRAIN SMARTER - Workout Planner: Access hundreds of exercises tailored for every muscle group, with AI recommendations to optimise your training - Advanced Tracker: Easily log sets, reps, and weights, and track progress with powerful analytics - Warm-Up and Drop Sets: Record how much effort you're putting into every rep - Custom Workout Routines: Save your favourite exercises in personalised routines for structured, efficient training - Lifting Groups: Join or create groups to stay motivated and compete in challenges - Strength Score: Benchmark your strength and build a balanced physique - Customised Routines: Generate plans tailored to your goals - Warm-Up Tracking: Prep effectively and track warm-ups separately - Visual Guidance: Learn new lifts with detailed instructional GIFs FOR EVERY FITNESS JOURNEY Beginner or pro, Stronger supports you every step of the way: - Focus on specific muscle groups like shoulders, chest, or legs - Plan routines for strength, hypertrophy, or fat loss - Track total volume, rep max, and lifting history READ WHAT USERS SAY - "I'm a personal trainer and use Stronger every day—best app out there" - "Best workout tracker. I've been using Stronger for three months now. I've tried Jefit, Strong, and Hevy, and Stronger is the clear winner." - "This app is a game changer for my workouts. Five stars!" - "One of the best apps I've ever bought." GET STARTED TODAY Download now and start your free 7-day trial. Join a thriving community of lifters redefining strength training. Together, let's lift Stronger! STRONGER PRO Stronger PRO is available via auto-renewing monthly or annual subscription. Start with a free 7-day trial to explore all features. A subscription is required for full access after the trial period. If you choose not to subscribe, you'll retain free access to the Workout Planner and Visual Guidance. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your Account Settings after purchase. TERMS & SUPPORT Have a question or suggestion? Reach out at [stronger@strongermobileapp.com](mailto:stronger@strongermobileapp.com). Privacy Policy: https://www.strongermobileapp.com/privacy-policy Terms of Service: https://www.strongermobileapp.com/terms-of-use

About

75 Days Challenge

This app guides users through a 75-day fitness and mental resilience challenge. It offers comprehensive workout routines, progress tracking, and features to build discipline and self-confidence. It also includes options for the 75 Soft Challenge and group fitness.

Highlights
  • Comprehensive fitness routines
  • Progress tracking
  • Discipline building
  • Mental resilience development
  • Habit creation
  • 75 Soft Challenge integration
  • Accountability partner
Features
Read full description

Introducing the 75 Days Challenge App – Redefine Your Limits, Elevate Your Fitness! Are you prepared to undertake the ultimate 75-day fitness and mental challenge? The 75 Days Challenge App is here to guide you through an extraordinary journey of strength, discipline, and transformation. Key Features: * Crush Your Limits: The 75 Days Challenge isn't just a fitness endeavor; it's a mindset revolution. This app is your partner in pushing beyond your comfort zone, embracing the "hard," and achieving what you once thought impossible in just 75 days. * Total Fitness Focus: Dive into a world of comprehensive fitness routines that challenge every aspect of your physicality over 75 days. From intense workouts to strategic recovery, the app maps out every step of your 75-day fitness odyssey. * Unyielding Discipline: Forge unbreakable discipline through the daily commitment of the challenge for 75 days. With the app by your side, stay on track with every workout, every ounce of sweat, and every drop of effort. * Challenge Tracker: Seamlessly track your progress over 75 days as you conquer each day of the 75 Days Challenge. Monitor your fitness triumphs and celebrate every hard-earned victory along your 75-day journey. * Mental Resilience: Beyond the physical, this 75-day challenge hones your mental resilience. Leverage the app's guidance to develop mental toughness that will empower you not only in fitness but in every aspect of life. * Daily Reminders: Let the app be your "hard" reminder over the course of 75 days. * Personal Growth: Embrace the challenge's transformative power over the course of 75 days, not just physically but mentally. The app aids you in embracing discomfort, adapting to change, and growing stronger with each passing day of your 75-day challenge. * Track Your Hard: Witness your evolution over the 75 days with a dedicated progress tracker. Witness firsthand how your dedication turns "hard" into your stepping stone to success throughout your 75-day journey. * 75 Soft Challenge: Expand your horizons further with the 75 Soft Challenge, where you'll focus on mindset, grit, and self-development to complement your fitness journey. * Self-Confidence: Build unshakable self-confidence as you conquer each day of the challenge. * Accountability Partner: Use the app as your accountability partner to stay disciplined and challenge your mind. * Create Habits: Develop lasting habits that will transform your health and fitness. * Health Challenge: Join the health challenge and experience group fitness like never before. * Endurance Workout: Enhance your endurance through challenging workouts designed to push your limits. * Arrow Tracker: Monitor your progress with the Arrow Tracker, witnessing your journey from "soft" to resilient. The 75 Days Challenge App isn't just an app; it's your beacon of inspiration, your accountability partner, and your bridge to a new level of fitness and determination over 75 days. Ready to redefine your limits, embrace the "hard," and conquer the challenge across 75 days? LIFETIME SUBSCRIPTION PRICING & TERMS 75 Days Challenge is free to download. Ongoing use requires an active subscription, available on a one-time plan for lifetime usage. You need to pay for the subscription for using this app. All payments made through iTunes are controlled and managed by Apple. Payments will be charged to your iTunes Account at confirmation of purchase. By continuing, you accept our Privacy Policy and Terms of Use. Subscriptions can be managed, and auto-renewal turned off in Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term. Read our full Terms of Use & Privacy Policy. Terms of use: https://sites.google.com/view/termsofusegetcomma/home Privacy Policy: https://sites.google.com/view/ppgetcomma/home.

Screenshots

Stronger4 screens
75 Days Challenge4 screens

Verdict

The call

The clearest difference is review sentiment: Stronger at 49% against 75 Days Challenge's 13%. Stronger also leads on rating (4.8 vs 4.4) and update cadence (every 3 days vs every 3 weeks). 75 Days Challenge's advantage is iOS requirement (12.4 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stronger sells 15 in-app purchases, starting at $9.99 per month and 75 Days Challenge sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Stronger holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Stronger has 17K ratings behind it against 46, so its average is the more settled of the two. Written reviews point the same way: 49% of Stronger's written reviews are positive against 13% of 75 Days Challenge's.

UpkeepUpdate frequency

Stronger ships an update every 3 days, 75 Days Challenge every 3 weeks. The most recent releases landed on September 24, 2026 and August 23, 2026 respectively.

Scorecard5 real differences · 5 level
Stronger versus 75 Days Challenge: the parameters behind the verdict, then further details
ParameterStronger75 Days Challenge
PriceFreeFree
Rating4.8 (17K ratings) — better4.4 (46 ratings)
Positive reviews49.2% of reviews — better12.5% of reviews
Number of ratings17K — better46
Update frequencyEvery 3 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.012.4 — better
Further details — not scored
Size219 MB16 MB
Age rating4+4+
DeveloperAtlas Smart Technologies LTDMuhammed Asaad Nadeem

Customer experience

Stronger

All ratings17,408 ratings
Positive94.7%
Neutral2.5%
Negative2.8%
Written reviews651 reviews
Positive49.2%
Neutral14.0%
Negative36.9%

75 Days Challenge

All ratings46 ratings
Positive84.8%
Neutral0.0%
Negative15.2%
Written reviews8 reviews
Positive12.5%
Neutral0.0%
Negative87.5%

Bugs and requests

Stronger

Reported bugs

4 issues
  • App crashes on opening
  • Workout logging not working correctly
  • Inability to edit or delete past workouts
  • Progress data disappearing or not syncing

Requested features

6 requests
  • Add more exercise variations
  • Integrate cardio tracking
  • Allow customization of muscle groups
  • Add timer and rest period features
  • Enable kg to lbs conversion
Show 1 more
  • Improve social features and group functionality

75 Days Challenge

Not enough reviews yet to summarise bugs or requests.

In-app purchases

15 purchases

Stronger

Subscriptions15
  • Stronger PRO Monthly$9.991 Month
  • Stronger PRO$12.991 Month
  • Stronger Pro Monthly$12.991 Month
Show 12 more
  • STRONGER MONTHLY$14.991 Month
  • STRONGER PRO$19.991 Year
  • Stronger PRO Annual7 Days trial$29.991 Year
  • Stronger PRO Annual7 Days trial$39.991 Year
  • STRONGER PRO3 Days trial$39.991 Year
  • Stronger PRO Annual$39.991 Year
  • Stronger PRO annual7 Days trial$49.991 Year
  • Stronger PRO Annual7 Days trial$49.991 Year
  • STRONGER PRO ANNUAL7 Days trial$69.991 Year
  • Stronger PRO7 Days trial$69.991 Year
  • Stronger PRO Annual$69.991 Year
  • STRONGER PRO ANNUAL7 Days trial$89.991 Year
1 purchases

75 Days Challenge

One-time1
  • 75 Day Challenge$4.99

Questions

Is Stronger free?
Stronger is free to download, with in-app purchases available.
Is 75 Days Challenge free?
75 Days Challenge is free to download, with in-app purchases available.
Which has better reviews, Stronger or 75 Days Challenge?
Stronger is rated higher. Stronger averages 4.8 out of 5 from 17K ratings, while 75 Days Challenge averages 4.4 from 46 ratings.
Do Stronger or 75 Days Challenge have ads?
Neither Stronger nor 75 Days Challenge shows ads.
Which is updated more often, Stronger or 75 Days Challenge?
Stronger ships an update every 3 days, and 75 Days Challenge every 3 weeks. Most recently, Stronger was updated on September 24, 2026 and 75 Days Challenge on August 23, 2026.

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